HD66727 Datasheet, PDF (94/97 Pages) Hitachi Semiconductor – Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function

HD66727
Referential data
VUP2 = V_CC – V5OUT2; VUP3 = V_CC – V5OUT3
(i) Relation between the obtained voltage and input voltage
11
10
9
8
VUP2 (V) ₇
6
5
4
2.0
Double boosting
3.0
4.0
5.0
Vci (V)
15
typ.
14
13
12
11
VUP3 (V)
10
9
8
7
6
2.0
Triple boosting
typ.
3.0
4.0
5.0
Vci (V)
Vci = V_CC, fcp =160 kHz, Ta = 25°C
Vci = V_CC, fcp =160 kHz, Ta = 25°C
(ii) Relation between the obtained voltage and temperature
9.5
9.0
VUP2 (V)
8.5
Double boosting
typ.
8.5
8.0
VUP3 (V)
7.5
Triple boosting
typ.
8.0
7.5
–60 –20 0 20
60 100
Ta (°C)
Vci = V_CC = 4.5 V, Rf = 180 kΩ, Io = 0.1 mA
7.0
6.5
–60 –20 0 20
60 100
Ta (°C)
Vci = V_CC = 2.7 V, Rf = 150 kΩ, Io = 0.1 mA
(iii) Relation between the obtained voltage and capacitance
9.0
8.5
VUP2 (V)
8.0
Double boosting
typ.
8.0
7.5
VUP3 (V)
7.0
Triple boosting
typ.
min.
7.5
6.5
7.0 _0.5
1.0
1.5
C (µF)
Vci = V_CC = 4.5 V, Rf = 180 kΩ, Io = 0.1 mA
6.0 _0.5
1.0
1.5
C (µF)
Vci = V_CC = 2.7 V, Rf = 150 kΩ, Io = 0.1 mA
Figure 55 Booster (cont)
94